Your lighting looks to be very high intensity. With an enclosure that is not very high, I would be concerned about heat. Also, Dart frogs, unlike reptiles, do not 'enjoy' or use, that much high intensity lighting on a regular basis. They need a lot of canopy to get out of the full light.

Your soil looks like it could be compacted easily. Combined with your large stream, I would be concerned about the soil being too wet - plant rot, and not being able to support microfauna or insects.

The lighting is a little stronger but I think it will not be a problem because I plan to densely will plant the plants that will produce enough shadow, also planning and hiding places for frogs than half of the coconut, explicitly notes, the hood can be moved in height very easily so I can increase my height if I see that is too bright. The substrate is a mixture of quartz sand, white Baltic peat and classical substrates for flowers, were drilled drainage holes through the polystyrene to hydro granules at every 5 cm, it should provide enough moisture, not too much. The water level is just to mesh between hydro granules and the substrate. Stream is not going over the substrate, is a special trough through which flows which is coated infill tile that is inert and does not dissolve in water.

I'm a little concerned about the continuing hiding my frog, now it's been a month as long as I put them and still barely seeing, what is causing this? Vivarium is densely planted with plants, has many places to hide, but never see more than one and there are six. The Vivarium has constantly flies and I think that they are not hungry and not exposed even when feeding them. I do not know if everything is normal.

Beautiful frog, but it looks like you are housing azureus with auratus? If so, I'd caution that mixing species is discouraged; here's a discussion on mixing species and hybridization:viewtopic.php?f=12&t=4470